GATEMASTER ML4 Full Plate Mortice Gate Hook Lock


The Gatemaster Mortice Hook Lock is a unique stainless steel lock that incorporates a latch and deadlock in one single-action bolt. Designed for use on a 40x40mm box section, once the section is cut to receive the lock it can simply be slid in and fixed without any drilling and tapping of the gate needed.

It is reversible for left and right hand gates (simply switch the latch direction), it fits 40x40x2mm box section or upward, it is corrosion resistant (all stainless steel with brass latch), tested to 1,000,000 openings and is supplied with a full plate cover, a stainless steel adjustable keep with self expanding fasteners, 60mm euro cylinder and a pair of handles.


  • The hooked bolt means you have one lock for swing or sliding gates
  • Latch can be operated with handle or key and deadlocked for security
  • Hooked deadbolt prevents the gate being levered off the post
  • Easy installation with no need to put thread in the box section
  • Tested to 1,000,000 openings
  • The bolt can be opened with the handle and deadlocked with the key
SKU: GATES_0019 Categories: ,


  • Backset: 20mm
  • Weight: 3.5Kg
  • Handed: Reversible
  • Keys Supplied: 3
  • Mechanism: Euro Cylinder
  • Pack Quantity: 1
  • Packaging: Boxed
  • Manufacturer Reference: ML4FCO